|Table of Contents|

Effect of Duck Manure Application on Nitrogen Accumulation in the Reed Wetland System under the Conditions of Drought(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2013年21期
Page:
182-186
Research Field:
Publishing date:

Info

Title:
Effect of Duck Manure Application on Nitrogen Accumulation in the Reed Wetland System under the Conditions of Drought
Author(s):
ZHANG He-dan; LIU Chao; XIE Jian-zhi
College of Resources and Environment Science，Agricultural University of Hebei，Baoding,Hebei 071001
Keywords:
duck mature application; nitrogen content; biomass; nitrogen accumulation
PACS:
X 703
DOI:
-
Abstract:
Dynamic changes of nitrogen in different soil layers of reeds were discussed with seasonal variation in a year with Baiyangdian reeds wetland covered by duck mature of different quality under the condition of drought，and the nitrogen accumulation of the wetland was obtained to provide the basis for the control of duck breeding number in the final.The results showed that the total nitrogen(TN)content of all the treatments were decreased gradually with soil depth increasing，but it had no significant difference in the two lower layers;for different layers,TN content increased firstly and then decreased and increased again in the 0~20 cm layer，and TN content in soil significantly increased in July,the treatments covered by duck mature of 9,12,15 kg/m2 were higher significantly (P<0.05)compared with the control,and the other two treatments,respectively.The TN content in the lower layers showed a clear downward trend from April to August，then it increased slightly.The application of duck mature had little influence on TN content in the two lower layers.According to the growth pattern，it was evaluated that the wetland could reserve 1.89 ×104 t in the form of nitrogen and 5.83×108 in the form of duck at most.It had little difference between the reed biomass and height of all treatments，and the nitrogen accumulation could achieve 53.88~67.35 kg/hm2 just as harvesting reeds at October.

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Last Update: 2014-08-27